Robert Downey Jr. Injures Ankle Performing Stunt on Iron Man 3 Set

While performing a stunt on the set of Iron Man 3 in Wilmington, North Carolina, August 15, Robert Downey Jr. "sustained an injury to his ankle," a Marvel Studios rep tells Us Weekly. "There will be a short delay in production while he recuperates."

Downey Jr. most recently suited up as Iron Man in May's super hero epic The Avengers, costarring Chris Evans, 31, Scarlett Johansson, 27, Chris Hemsworth, 29, Jeremy Renner, 41, and Mark Ruffalo, 44. It became the fastest film to gross $1 billion worldwide, and as a result, writer/director Joss Whedon, 48, is working on a sequel. The Avengers 2 is expected to hit theaters on May 1, 2015.